@import '../../style/themes/index';
@import '../../style/mixins/index';
@import './mixin';

@btn-prefix-cls: ~'@{vcu-prefix}-btn';

// for compatible
@btn-ghost-color : @text-color;
@btn-ghost-bg    : transparent;
@btn-ghost-border: @border-color-base;

// Button styles
// -----------------------------
.@{btn-prefix-cls} {
  // It is a render problem of chrome, which is only happened in the codesandbox demo
  // 0.001px solution works and I don't why
  line-height: @line-height-base - 0.5;
  .btn;
  .btn-default;

  // Make sure that the target of Button's click event always be `button`
  >i,
  >span {
    display       : inline-block;
    transition    : margin-left 0.3s @ease-in-out;
    pointer-events: none;
  }

  &-primary {
    .btn-primary;

    .@{btn-prefix-cls}-group &:not(:first-child):not(:last-child) {
      border-right-color: @btn-group-border;
      border-left-color : @btn-group-border;

      &:disabled {
        border-color: @btn-default-border;
      }
    }

    .@{btn-prefix-cls}-group &:first-child {
      &:not(:last-child) {
        border-right-color: @btn-group-border;

        &[disabled] {
          border-right-color: @btn-default-border;
        }
      }
    }

    .@{btn-prefix-cls}-group &:last-child:not(:first-child),
    .@{btn-prefix-cls}-group &+& {
      border-left-color: @btn-group-border;

      &[disabled] {
        border-left-color: @btn-default-border;
      }
    }
  }

  &-ghost {
    .btn-ghost;
  }

  &-dashed {
    .btn-dashed;
  }

  &-danger {
    .btn-danger;
  }

  &-link {
    .btn-link;
  }

  &-info {
    .btn-info;
  }

  &-success {
    .btn-success;
  }

  &-warning {
    .btn-warning;
  }

  &-icon-only {
    .btn-square(@btn-prefix-cls);

    >i {
      vertical-align: middle;
    }
  }

  &-round {
    .btn-round(@btn-prefix-cls);

    &.@{btn-prefix-cls}-icon-only {
      width: auto;
    }
  }

  &-circle,
  &-circle-outline {
    .btn-circle(@btn-prefix-cls);
  }

  &::before {
    position      : absolute;
    top           : -1px;
    right         : -1px;
    bottom        : -1px;
    left          : -1px;
    z-index       : 1;
    display       : none;
    background    : @component-background;
    border-radius : inherit;
    opacity       : 0.35;
    transition    : opacity 0.2s;
    content       : '';
    pointer-events: none;
  }

  .@{iconfont-css-prefix} {
    transition: margin-left 0.3s @ease-in-out;

    // Follow icon blur under windows. Change the render.
    &.@{iconfont-css-prefix}-plus,
    &.@{iconfont-css-prefix}-minus {
      >svg {
        shape-rendering: optimizeSpeed;
      }
    }
  }

  &&-loading {
    position: relative;

    &:not([disabled]) {
      pointer-events: none;
    }
  }

  &&-loading::before {
    display: block;
  }

  &&-loading:not(&-circle):not(&-circle-outline):not(&-icon-only) {
    padding-left: 29px;

    .@{iconfont-css-prefix}:not(:last-child) {
      margin-left: -14px;
    }
  }

  &-sm&-loading:not(&-circle):not(&-circle-outline):not(&-icon-only) {
    padding-left: 24px;

    .@{iconfont-css-prefix} {
      margin-left: -17px;
    }
  }

  &-group {
    .btn-group(@btn-prefix-cls);
  }

  // http://stackoverflow.com/a/21281554/3040605
  &:focus>span,
  &:active>span {
    position: relative;
  }

  // To ensure that a space will be placed between character and `Icon`.
  >.@{iconfont-css-prefix}+span,
  >span+.@{iconfont-css-prefix} {
    margin-left: 8px;
  }

  &-background-ghost {
    color       : @component-background;
    background  : transparent !important;
    border-color: @component-background;
  }

  &-background-ghost&-primary {
    .button-variant-ghost(@btn-primary-bg);
  }

  &-background-ghost&-danger {
    .button-variant-ghost(@btn-danger-border);
  }

  &-background-ghost&-link {
    .button-variant-ghost(@link-color; transparent);

    color: @component-background;
  }

  &-two-chinese-chars::first-letter {
    letter-spacing: 0.34em;
  }

  &-two-chinese-chars>*:not(.@{iconfont-css-prefix}) {
    margin-right  : -0.34em;
    letter-spacing: 0.34em;
  }

  &-block {
    width: 100%;
  }

  &:empty {
    vertical-align: top;
  }
}

a.@{btn-prefix-cls} {
  // It is a render problem of chrome, which is only happened in the codesandbox demo
  // 0.1px for padding-top solution works and I don't why
  padding-top: 0.1px;
  line-height: @btn-height-base - 2px;

  &-lg {
    line-height: @btn-height-lg - 2px;
  }

  &-sm {
    line-height: @btn-height-sm - 2px;
  }

  &-mini {
    line-height: @btn-height-mini - 2px;
  }
}